How do desert foxes survive extreme heat?

Desert foxes, such as the fennec fox, survive extreme heat through several adaptations. Their large ears dissipate heat, keeping their bodies cool, while their thick fur protects them from intense sunlight during the day and cold temperatures at night. They are nocturnal, avoiding daytime heat by hunting at night and resting in burrows during the day. Their kidneys are highly efficient, conserving water by producing concentrated urine. These traits allow them to thrive in arid environments.